Title:
CENTRIFUGAL FAN AND RANGE HOOD
Document Type and Number:
WIPO Patent Application WO/2022/062043
Kind Code:
A1
Abstract:
A centrifugal fan (100) and a range hood (1000). The centrifugal fan (100) comprises a volute (1), a centrifugal wind turbine (4), an air guide ring (2), and an adjusting mechanism (3). The centrifugal wind turbine (4) is arranged in the volute (1). The air guide ring (2) is installed in the air inlet (12) of the volute (1). The air guide ring (2) comprises a ring-shaped extending part that extends into the volute (1). The ring-shaped extending part is at least partially arranged as an adjustable extending part (21), along the air inlet direction, the adjustable extending part (21) has an adjustable width, such that the extension depth of the air guide ring (2) is adjustable. The adjusting mechanism (3) is used to change the adjustable width of the width of the adjustable extending part (21).
Inventors:
ZHANG YE (CN)
BIAN LECHAO (CN)
HE FUTIAN (CN)
CUI FUHAO (CN)
LI WEI (CN)
LIU HUACHUN (CN)
WANG YAODONG (CN)
LI ZHONGHUA (CN)
BIAN LECHAO (CN)
HE FUTIAN (CN)
CUI FUHAO (CN)
LI WEI (CN)
LIU HUACHUN (CN)
WANG YAODONG (CN)
LI ZHONGHUA (CN)
Application Number:
PCT/CN2020/124065
Publication Date:
March 31, 2022
Filing Date:
October 27, 2020
Export Citation:
Assignee:
FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD (CN)
International Classes:
F04D17/16; F04D25/06; F04D29/46; F24C15/20
Foreign References:
| CN107503958A | 2017-12-22 | |||
| CN204327586U | 2015-05-13 | |||
| CN106438493A | 2017-02-22 | |||
| CN110145481A | 2019-08-20 | |||
| CN202251105U | 2012-05-30 | |||
| CN107339258A | 2017-11-10 | |||
| CN208702780U | 2019-04-05 | |||
| JP2005083244A | 2005-03-31 | |||
| JP2001140795A | 2001-05-22 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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